/* intro v17 — Death Note noir: circuit band, pulse rings, extrude text, duotone media, scroll slide-in */

/* Circuit-board traces — colour via Tailwind text-* on the band, currentColor in the pattern */
.intro-noir__circuit {
    background-image:
        repeating-linear-gradient(0deg, currentColor 0 1px, transparent 1px 32px),
        repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 32px);
    opacity: 0.18;
    -webkit-mask: linear-gradient(180deg, black, transparent);
    mask: linear-gradient(180deg, black, transparent);
}

/* Pulse rings from the band centre (size + placement so Bootstrap has no utility gap) */
.intro-noir__ring {
    width: 6rem;
    height: 6rem;
    top: 6rem;
    left: 50%;
    margin-left: -3rem;
    opacity: 0;
    animation: intro-noir-pulse 3.4s ease-out infinite;
}
.intro-noir__ring--2 { animation-delay: 1.7s; }

@keyframes intro-noir-pulse {
    0%   { transform: scale(0.4); opacity: 0.55; }
    100% { transform: scale(3.4); opacity: 0; }
}

/* Emboss seal circle */
.intro-noir__seal {
    width: 7rem;
    height: 7rem;
    font-size: 0.75rem;
    line-height: 1.1;
    padding: 0.75rem;
    transform: rotate(-8deg);
}

/* Extrude — stacked text-shadow depth using the element's own colour */
.intro-noir__extrude {
    text-shadow: 1px 1px 0 currentColor, 2px 2px 0 currentColor, 3px 3px 0 currentColor;
}

/* Duotone media: grayscale image + primary multiply tint (colour is a Tailwind class) */
.intro-noir__img {
    height: 10rem;
    object-fit: cover;
    filter: grayscale(1) contrast(1.05);
}

/* Sticky aside offset (Bootstrap position-sticky has no top-16 utility) */
@media (min-width: 992px) {
    .intro-noir__aside { top: 4rem; }
}
.intro-noir__tint {
    mix-blend-mode: multiply;
    opacity: 0.5;
}

/* Letter-spacing widen on hover */
.intro-noir__ttl { transition: letter-spacing 260ms ease; }
[data-card]:hover .intro-noir__ttl { letter-spacing: 0.08em; }

/* Slide-in entrance — pure CSS on the reliable [data-card] attribute; always ends visible */
@keyframes intro-noir-rise {
    from { opacity: 0; transform: translateY(2rem); }
    to   { opacity: 1; transform: translateY(0); }
}
.intro-noir [data-card] { animation: intro-noir-rise 560ms ease both; }

@media (prefers-reduced-motion: reduce) {
    .intro-noir__ring { animation: none; }
    .intro-noir [data-card] { animation: none; }
}

/* steps v23 - scroll progress fill driven by a JS-set --progress custom property */

.ascent-rail__wrap {
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
}

.steps-scroll-timeline__track {
    position: relative;
    padding-left: 4rem;
}

.steps-scroll-timeline__line {
    position: absolute;
    left: 1.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
}

.steps-scroll-timeline__fill {
    --progress: 0%;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--progress);
    transition: height 120ms linear;
}

.steps-scroll-timeline__dot {
    position: absolute;
    left: -4rem;
    top: 0;
    width: 3rem;
    height: 3rem;
}

/* process tron — grid bg pattern, card glow line, hover + active state */
.process-tron__grid-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.35;
    background-image:
        linear-gradient(currentColor 1px, transparent 1px),
        linear-gradient(90deg, currentColor 1px, transparent 1px);
    background-size: 3rem 3rem;
}

.process-tron__card {
    cursor: pointer;
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.process-tron__card-hov:hover,
.process-tron__card-hov:focus-within,
.process-tron__card.is-active {
    transform: translateY(-0.35rem);
    box-shadow: var(--bs-box-shadow-lg);
    border-color: var(--bs-primary);
}

.process-tron__glow-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--bs-primary);
    opacity: 0;
    transition: opacity 220ms ease;
}

.process-tron__card-hov:hover .process-tron__glow-line,
.process-tron__card-hov:focus-within .process-tron__glow-line,
.process-tron__card.is-active .process-tron__glow-line {
    opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
    .process-tron__card {
        transition: none;
    }

    .process-tron__card-hov:hover,
    .process-tron__card-hov:focus-within,
    .process-tron__card.is-active {
        transform: none;
    }
}

.gallery-animated-dots__dot--pos-1 {
    top: 5rem;
    left: 4rem;
    width: 2rem;
    height: 2rem;
}

.gallery-animated-dots__dot--pos-2 {
    top: 8rem;
    right: 5rem;
    width: 1.5rem;
    height: 1.5rem;
}

.gallery-animated-dots__dot--pos-3 {
    bottom: 6rem;
    left: 5rem;
    width: 2.5rem;
    height: 2.5rem;
}

.gallery-animated-dots__dot--pos-4 {
    bottom: 8rem;
    right: 4rem;
    width: 1rem;
    height: 1rem;
}

.gallery-animated-dots__dot--pos-5 {
    top: 25%;
    left: 25%;
    width: 0.5rem;
    height: 0.5rem;
}

.gallery-animated-dots__dot--pos-6 {
    top: 33.333%;
    right: 33.333%;
    width: 0.75rem;
    height: 0.75rem;
}

.gallery-animated-dots__dot--pos-7 {
    bottom: 25%;
    left: 33.333%;
    width: 0.5rem;
    height: 0.5rem;
}

@keyframes gallery-animated-dots-bounce-kf {
    0%, 100% { transform: translateY(-25%); animation-timing-function: cubic-bezier(0.8, 0, 1, 1); }
    50% { transform: translateY(0); animation-timing-function: cubic-bezier(0, 0, 0.2, 1); }
}

.gallery-animated-dots__dot--bounce {
    animation: gallery-animated-dots-bounce-kf 1s infinite;
}

@keyframes gallery-animated-dots-pulse-kf {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

.gallery-animated-dots__dot--pulse {
    animation: gallery-animated-dots-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes gallery-animated-dots-ping-kf {
    75%, 100% { transform: scale(2); opacity: 0; }
}

.gallery-animated-dots__dot--ping {
    animation: gallery-animated-dots-ping-kf 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.gallery-animated-dots__item--hover {
    transition: transform 0.3s ease;
}

.gallery-animated-dots__item--hover:hover {
    transform: scale(1.05);
}